17-7PH Stainless Steel Sheet, Plate & Coil - AMS 5528, UNS S17700

Coil

17-7 PH is a precipitation-hardened stainless steel that is well suited for aerospace and other applications requiring high strength and good corrosion resistance and formability. Type 17-7 PH is a Chromium-Nickel-Aluminum, austenitic stainless steel.  It is the most formable of all PH grades and has the highest strength and hardness. It is less magnetic than other PH grades and offers minimal distortion upon heat treatment. This material maintains its valuable properties at temperatures up to 800°F (427° C).

Inventory Size Ranges for 17-7 PH

Type Thickness AMS Standards ASTM UNS ASME Get a Quote
Coil 0.020" - 0.125" AMS 5528 ASTM A 693 UNS S17700 ASME SA 693 Get a Quote
Sheet 0.020" - 0.125" AMS 5528 ASTM A 693 UNS S17700 ASME SA 693 Get a Quote
Plate 0.1875" AMS 5528 ASTM A 693 UNS S17700 ASME SA 693 Get a Quote

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Characteristics of 17-7

Provides benefits for applications requiring high strength and good corrosion resistance. This material also maintains hardness and has excellent fatigue properties. 

Other industry standards we comply with:

  • W.NR 1.4541
  • PWA-LCS
  • GE Aircraft Engine (GT193)
  • GE Aviation S-SPEC-35 AeDMS S-400
  • RR SABRe Edition 2
  • DFARS Compliant

Common Trade Names

  • 17-7 (® AK Steel)
  • ATI 17-7 (â„¢ Allegheny Technologies)
  • T-17-7 Stainless Steel (ThyssenKrupp VDM)

Industry Applications for 17-7 PH

  • Aerospace applications
  • Chemical processing equipment
  • Oil and petroleum refining equipment
  • Food grade stainless steel for processing equipment
  • General metalworking

Chemical Composition

Chemical Composition Percentage of 17-7 PH
Element Min Max
C Carbon - 0.09
Mn Manganese - 1.00
P Phosphorus - 0.05
S Sulfur - 0.03
Si Silicon - 1.00
Cr Chromium 16.00 18.00
Ni Nickel 6.75 7.75
Al Aluminum 0.75 1.50

Physical Properties

  • Density: 0.2820 lb/in3
  • Melting Range: 2560 - 2625°F (1404 - 1440°C)
  • Electrical Resistivity (Annealed Condition): 80 Microhm-cm
Linear Coefficient of Thermal Expansion
Temperature RangeCoefficients 
°C°Fμm/m°Cin/in/°F·106
21-9370-20015.38.5
21-20470-40016.29.0
21-31670-60017.19.5
21-42770-80017.39.6
Thermal Conductivity (TH 1050 Condition)
Temperature RangeCoefficients 
°C°FW/m·KBtu/(hr/ft²/in/°F)
14930016.87117
26050018.46128
44984021.05146
48290021.05146
Magnetic Permeability (Annealed Condition)
OerstedsAT/mμ
2519891.4 - 3.4
5038781.4 - 3.6
10079561.4 - 3.5
20015.9121.4 - 3.2
maxmax1.4 - 3.6

Mechanical Properties

Mechanical Properties and Yield Strength at Room Temperatures (Annealed)

  • Ultimate Tensile Strength psi (MPa): 130,000 (896)
  • 0.2% Tensile Yield Strength psi (MPa): 40,000 (276)
  • Elongation % in 2" (50mm): 35
  • Hardness Rockwell: B85

Datasheet

17-7-ph-datasheet.pdf (100.05 KB)

Additional Info